PM42100B-FEI

Overview

The PM42100B-FEI is a PCIe Gen5 switch manufactured by Microchip Technology, designed for high-bandwidth data center and enterprise applications. It features a 128-lane architecture with 64 downstream ports operating at up to 32 GT/s per lane. The device utilizes a BBGA-1932 package suitable for surface mount technology. It supports advanced PCIe features including SR-IOV, ACS, and P2P routing. The component operates within a temperature range of -40°C to +105°C and includes integrated management interfaces such as I2C and UART for system monitoring and configuration.

Feature Summary

• Supports PCIe Gen5 specification with 32 GT/s data rates
• Provides 128 lanes across 64 downstream ports for extensive connectivity
• Integrates hardware-based security features including Secure Boot and encryption support

Applications

• High-performance computing servers
• Storage area networks (SAN)
• Data center infrastructure

Procurement Notes

Verify the specific suffix FEI against the official Microchip datasheet to confirm package type and moisture sensitivity level. Ensure compatibility with existing PCB layouts regarding the BBGA-1932 footprint. Check for RoHS compliance documentation prior to integration. Confirm lead times directly with authorized distributors as availability fluctuates based on production schedules.

Selection Notes

Select this component when designing systems requiring high port density and low latency interconnects. Compare power dissipation requirements against thermal design capabilities due to the high lane count. Evaluate software support for configuration tools if dynamic reconfiguration is needed. Consider alternative models like the PM42100B series variants if different lane counts or feature sets are sufficient for the application.

Part Context

This part belongs to the PFX family of PCIe switches from Microchip Technology. It complements other models in the lineup offering varying lane counts and port configurations. The family is targeted at scalable server and storage solutions requiring robust switching capabilities.

Replacement Considerations

Direct substitutes may include other PM42100B variants with different suffixes indicating package or temperature variations. Cross-referencing pinouts and electrical characteristics with the original datasheet is essential before substitution.